Adding upstream version 1:4.5.upstream/1%4.5upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 102 insertions, 0 deletions

diff --git a/libmisc/pwd_init.c b/libmisc/pwd_init.c
new file mode 100644
index 0000000..774ba9b
--- /dev/null
+++ b/libmisc/pwd_init.c
@@ -0,0 +1,102 @@
+/*
+ * Copyright (c) 1990 - 1994, Julianne Frances Haugh
+ * Copyright (c) 1997       , Marek Michałkiewicz
+ * Copyright (c) 2003 - 2005, Tomasz Kłoczko
+ * Copyright (c) 2008       , Nicolas François
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the copyright holders or contributors may not be used to
+ *    endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#ident "$Id$"
+
+#include "defines.h"
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#ifdef HAVE_SYS_RESOURCE_H
+#include <sys/resource.h>
+#endif
+
+#include "prototypes.h"
+
+/*
+ * pwd_init - ignore signals, and set resource limits to safe
+ * values.  Call this before modifying password files, so that
+ * it is less likely to fail in the middle of operation.
+ */
+void pwd_init (void)
+{
+#ifdef HAVE_SYS_RESOURCE_H
+	struct rlimit rlim;
+
+#ifdef RLIMIT_CORE
+	rlim.rlim_cur = rlim.rlim_max = 0;
+	setrlimit (RLIMIT_CORE, &rlim);
+#endif
+	rlim.rlim_cur = rlim.rlim_max = RLIM_INFINITY;
+#ifdef RLIMIT_AS
+	setrlimit (RLIMIT_AS, &rlim);
+#endif
+#ifdef RLIMIT_CPU
+	setrlimit (RLIMIT_CPU, &rlim);
+#endif
+#ifdef RLIMIT_DATA
+	setrlimit (RLIMIT_DATA, &rlim);
+#endif
+#ifdef RLIMIT_FSIZE
+	setrlimit (RLIMIT_FSIZE, &rlim);
+#endif
+#ifdef RLIMIT_NOFILE
+	setrlimit (RLIMIT_NOFILE, &rlim);
+#endif
+#ifdef RLIMIT_RSS
+	setrlimit (RLIMIT_RSS, &rlim);
+#endif
+#ifdef RLIMIT_STACK
+	setrlimit (RLIMIT_STACK, &rlim);
+#endif
+#else				/* !HAVE_SYS_RESOURCE_H */
+	set_filesize_limit (30000);
+	/* don't know how to set the other limits... */
+#endif				/* !HAVE_SYS_RESOURCE_H */
+
+	signal (SIGALRM, SIG_IGN);
+	signal (SIGHUP, SIG_IGN);
+	signal (SIGINT, SIG_IGN);
+	signal (SIGPIPE, SIG_IGN);
+	signal (SIGQUIT, SIG_IGN);
+	signal (SIGTERM, SIG_IGN);
+#ifdef SIGTSTP
+	signal (SIGTSTP, SIG_IGN);
+#endif
+#ifdef SIGTTOU
+	signal (SIGTTOU, SIG_IGN);
+#endif
+
+	umask (077);
+}